每秒闪一个按钮

1 回答

• 1

  您可以使用 kivy.clock 来安排事件：

  from functools import partial
  from kivy.clock import Clock
  from kivy.uix.gridlayout import GridLayout
  from kivy.app import App
  from kivy.uix.button import Button
  
  
  class MyApp(App):
      def build(self):
          self.butts = []
          self.count = 0
          layout = GridLayout(cols=10)
          for i in range (1, 101):
              butt = Button(text=str(i))
              self.butts.append(butt)
              layout.add_widget(butt)
  
          # schedule call to self.flash every second
          Clock.schedule_interval(self.flash, 1.0)
          return layout
  
      def flash(self, dt):
          butt = self.butts[self.count]
          butt.state = 'down'
  
          # schedule call to set the button back to 'normal' in half a second
          Clock.schedule_once(partial(self.setNormal, butt), 0.5)
          self.count += 1
          if self.count == len(self.butts):
              # end the interval scheduling
              return False
          else:
              return True
  
      def setNormal(self, butt, dt):
          butt.state = 'normal'
  
  
  MyApp().run()
  

  回复于 2024-05-03T01:56:46+08:00